1.Chirstoper Columbus discovered America.

America was dicovered by Chirstoper Columbus

2.The teacher gave us a lot of presents.

We were given a lot of presents

3.His parents made him study hard for the exam.

He was made to study hard for the exam by his parents

4.Poest have mentioned the Ao dai in poems.

The Ao dai has been mentioned in poems

5.Some fashion designers have printed lines of poetry on the Ao dai.

Lines of poetry have been printed on the Ao dai by some fashion designers

6.Some fashion designers have added the symbols to the Ao dai.

The symbols have been added to the Ao dai

7.They have built two department stores this year.

Two department stores have been built this year

8.No one has seen Mary since 3 o’clock.

Mary hasn't been seen since 3 o'clock

9.Trang has just won the first prize.

The first prize has just been won by Trang

10.Peple have used the Internet for education in recent years.

The Internet has been used for education in recent years

11.Famous engineers have designed the washing machine.

The washing machine has been designed by famous engineers

12.They have just built a new bridge here.

A new bridge has just been built by them

13.The clothing store has just introduced a new style of jeans.

A new style of jeans has just been introduced

14.The fashion designers have just made a new style of jeans.

A new style of jeans has just been made

15.You must do this work right away.

This work must been done right away

16.They will build a new station here.

A new station will be built here
17.I think he should decorate his room again.

I think his room should be decorated again

18.You should send this letter before Saturday.

This letter should be sent before saturday

2. They have just introduced a new style of jeans in the USA.

→ A new style of jeans ………have just been … introduced in the USA…………………………………………………………..……

3. My brother started working for that company two years ago.

→ My brother has …worked for that company for 2 years…………………………………………………………………………..…….

4. “What aspect of learning English do you find most difficult?” The teacher asked me.

→ The teacher asked me.…what aspect of learning English the student found most difficult………………………………………………………..……………

5. We can use the internet to communicate with our friends and relatives.

→ The internet...............can be used ....... to communicate with our friends and relatives.......................................................................................................

6. We postponed the picnic because the weather was bad.

→ The weather…was bad so we postponed the picnic.…………………………………………………………………..……………

7. I don’t have a computer to get access to the internet.

→ I wish ……i had …………a computer to get access to the internet.……………………………………….…………………………………

8. Does your sister travel to work by bus every morning?

® Your sister traves to work by bus every morning, doesn't she ? ...........................................................................................................................?

The present perfect tense in the passive

1. he has just bought a new car

->A new ...........car has been just bought.........................................................

2.she has studied english for six years

->english............has been studied for six years........................................................

3.they have just introduced a new style of jeans

->A new ...............style of jeans has just been introduced......................................................

5.someone has just stolen my bike

->my ............bike has just been stolen.........................................................

6. he has just killed his wife

->his wife ..........has just been killed...........................................................

8. i have raised there dogs for ten years

-> these...........dogs have been raised for ten years..........................................................

1. They have just introduced a new style of jeans in the USA.

--> A new style of jeans......has just been introduced in the USA.........................................................................................

2. I started to learn English 2 years ago .

--> I have....learned E for 2 years............................................................................................................

3. We can solve the problem

-->The problem.....can be solved by us...............................................................................................

4. I’m sorry ,I can not help you

.-->I wish ....I could help you............................................................................................................

1. They have just introduced a new style of jeans in the USA.

--> A new style of jeans..............has just been introduced  in the USA....................................

2. I started to learn English 2 years ago .

--> I have.................learnt Ennglish for two years..............................................................

3. We can solve the problem

-->The problem..................can be solved....................................................

4. I’m sorry ,I can not help you

.-->I wish ....................i could help you.........................................................................

1. They  a new style of jeans in the USA.

--> A new style of jeans has just been introduced in the USA.

2. I started to learn English 2 years ago .

--> I have learned English for 2 years

3. We can solve the problem

-->The problem can be solved

4. I’m sorry ,I can not help you .

-->I wish I could help you

62. They grow rice in tropical countries.
→Rice…………………is grown in tropical countries……………………………………….
63. They have just introduced a new style of jeans in the USA.
→A new style of jeans…………………has just been introduced in the USA………………………
64. They have just built two department stores this year.
→Two department stores……………has just been built this year……………………………
65. They will produce five millions bottles of champagne in France next year. →Five million bottles…………of champagne will be produced in France next year……………………………….
66. We have to improve all the schools in the city.
→All the schools…………………in the city have to be improved………………………………
67. They are going to build a new bridge in the area.
→A new bridge………………is going to be built in the area…………………………………..
68.We might find life on another planet.
→Life………………………might be found on another planet…………………………………..
69. You must do this exercise carefully.
→This exercise………must be done carefully……………………………………………

1. They have just introduced a new style of jeans.
-> A new style of jeans has just been introduced 
2. What a pity. I'm not lying on a beautiful sunny beach!
-> I wish I were lying on a beautiful sunny beach!
3. Dane wishes he had spoken his mind at the meeting.
-> Dane regretted not speaking his mind at the meeting.
4. The police must be phoned immediately.
-> Someone must phone the police immediately
5. Is that the place where you lived before?
-> Did you use to live in that place
6. This is the best concert I have ever been to.
-> I've never been to such a good concert
7. There is no need for you to do any work if you don't feel like it.
-> If you don't feel like doing any work, you don't have to do
8. It's Linda's sixteenth birthday on Wednesday.
-> Linda will be 16 on wednesday
9. Do you ever regret not learning how to swim?
->I wish you had learned how to swim
10. This is his first time learning English.
-> He has never learnt E before

passive in present perfect

1.mary has operated Linda since 10 o'clock

Linda has been operated by Mary since 10 o'clock.

2.Tony hasn't finished his homework

Tony's homework hasn't been finished by him.

3.we have just seen a horrible accident.

A horrible accident has just been seen by us.

4.he hasn't seen you for years.

You haven't been seen by him for years.

5.nobody has used this room for ages.

This room hasn't been used for ages.

6.the tailor has just made a new suit for me

A new suit has just been made for me by the tailor.

7.have you seen philip lately?

Has Philip been seen by you lately?

8.my father has used this bicycle for 5 years

This bicycle has been used by my father for 5 years.

9.have you seen any good films so far?

Has any good films been seen by you so far?

10.they have hired peter to do this job

Peter has been hired to do this job by them.

11.the police has interviewed him

He has been interviewed by the police.

12.someone has already told him to give a book repork next week

He has already been told to give a book report next week.

13.have the farmers cut grass for hay?

Has grass been cut for hay by the farmers?

14.they haven't sent us the book they published last year

The book they published hasn't been sent by them last year.

15.the teacher has helped Lam

Lam has been helped by the teacher.